JPH04360075A - Disk player device - Google Patents

Abstract

PURPOSE:To provide a disk player device which can be used in either a horizontal posture or a vertical posture without changing the hook part of a spring, concerning a disk player device for a compact disk, etc. CONSTITUTION:A base plate 50 supporting an optical pickup 56 is brought to support a chassis 46 via a damper 47, the spring 48 is stretched across the base plate 50 and the chassis 46, and the stretching direction of the spring 48 is set approximately at 45 degree angle to each of the orthogonally crossing three faces.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player device for playing discs such as compact discs.

0002

2. Description of the Related Art In conventional disk player devices, a substrate holding an optical pickup is supported via a damper and a spring in order to absorb the impact when it is applied from the outside. Particularly when using a disc player in a car, various vibrations are applied, so dampers and springs are used to hold the optical pickup.

As described above, dampers, springs, etc. have been used to improve the earthquake resistance of disk player devices. However, the conventional disc player device is
The earthquake-resistant structure is designed specifically for horizontal use, where discs are rotated in a horizontal plane for playback. There was a problem that earthquake resistance deteriorated.

[0004] In order to solve the above problem, when changing the disk player device from horizontal use to vertical use,
A disc player device has been proposed in which the hooking position of the spring holding the optical pickup board can be changed.

[0005]

[Problem to be Solved by the Invention] However, when changing from horizontal use to vertical use as in the above conventional example, or when changing from vertical use to horizontal use, it is difficult to change the hooking position of the spring. was complicated and inconvenient for users.

[0006] The present invention solves the above-mentioned conventional problems, and the hooking position of the spring is changed when changing from horizontal to vertical use or from vertical to horizontal use. To provide a disc player device that can be used both vertically and horizontally without the need for a storage device.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the present invention holds a movable member supporting an optical pickup to a fixed member via a plurality of dampers, and connects the movable member and the fixed member. A plurality of elastic members are stretched between them, and the direction in which the elastic members are stretched is approximately 45 degrees with respect to three planes orthogonal to each other at the attachment portion of the elastic member to the substrate. It is something.

[0008]

[Operation] The present invention has the above-mentioned structure, and can be used in a horizontal position with the movable member supporting the optical pickup in a horizontal position, or in a vertical position in which the movable member is in a vertical position. The relative position of the movable member with respect to the member can be made to be approximately the same position.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the external appearance of a disc changer device equipped with a disc player device for compact discs according to an embodiment of the present invention. In Figure 1,
Reference numeral 1 denotes a box-shaped housing, and a magazine insertion opening is formed on the left side of the front face 2 of this housing 1. A sliding lid 3 is supported on the front surface 2 of the housing 1 so as to be slidable left and right, and this sliding lid 3 opens and closes the magazine insertion slot. FIG. 1 shows a state in which the sliding lid 3 is slid to the left side of the front section 2 to close the magazine insertion opening.

FIGS. 2 and 3 show a magazine that stores a plurality of CDs. In FIGS. 2 and 3, 4 is a box-shaped magazine body, and 5 is an opening formed on one side of the magazine body 4. As shown in FIG. A plurality of guide pieces 7 for guiding the tray 6 are formed in parallel on the inner wall surface of the magazine body 4. A recess 8 for storing a CD is formed on the upper surface of the tray 6, and a hole 9 is formed in the center of the recess 8. Reference numeral 10 denotes a locking piece formed on the front edge of the tray 6, and the claw of the tray pull-out mechanism is locked to this locking piece 10 to pull out the tray 6 from inside the magazine body 4, or to pull out the tray 6 from the magazine body 4. It is stored in the main body 4. 1
1 is a notch formed in the magazine body 4. In FIG. 1, the sliding lid 3 is slid to the right to open the magazine insertion port, and the magazine shown in FIG. 2 is inserted into the magazine insertion port. The magazine shown in FIG. 2 is housed on the left side of the casing 1 shown in FIG. , a clamper means is provided which inserts the clamper from the bottom side of the tray and lifts the disc placed on the tray to the turntable. The disk held between the turntable and the clamper is rotated by the turntable, and data is read by an optical pickup.

This embodiment will be explained below with reference to FIGS. 4 to 6. 4 to 6, reference numeral 12 denotes an elevating plate that moves up and down within the housing 1, and this elevating plate 12 is provided with a tray pull-out mechanism (not shown) for drawing out a tray from the magazine. A gear 13 is rotatably supported by the elevating plate 12, and an eccentric pin 14 is formed at an eccentric position on the upper surface of the gear 13. 15 is a gear train that transmits the rotational driving force of a motor (not shown) to the gear 13. The rotational driving force of the motor is transmitted to the gear 13 via the gear train 15, and the gear 13 rotates counterclockwise. . 16 is a rotating arm in which a long hole 17 into which the eccentric pin 14 is inserted is formed, and this rotating arm 16 is connected to the lifting plate 1.
It is rotatably supported on a shaft 18 provided at 2. 1
9 is a pin implanted at one end of the rotating arm 16. 2
0 is a sliding plate that is slidably supported by the elevating plate 12 (slidably in the direction of the arrow The pins on the lower surface of the sliding plate 20 are guided to the long holes in the lifting plate 12, so the sliding plate 20
It slides on the top in the direction of arrow X. The above sliding plate 20
The pin 1 of the rotating arm 16 is inserted into the elongated hole 21 formed in the
9 is inserted, and the rotating arm 16 and the sliding plate 20 are connected via this pin 19. Reference numeral 22 denotes a triangular drive piece integrally formed at the edge of the sliding plate 20, and this drive piece 22 projects upward. 23 is a pin implanted in one end of the sliding plate 20, and 24 is the sliding plate 20 in FIG.
This is a regulation piece made by cutting and raising a part of the. Reference numeral 25 denotes a rotating board, and bent pieces 25a and 25b bent upward are formed on both sides of this rotating board 25.
, 25b are implanted with shafts 26a, 26b. 27
Support pieces a and 27b are formed by cutting and raising a part of the lifting plate 12, and shafts 26a and 26b of the bent pieces 25a and 25b are inserted into holes formed in the support pieces 27a and 27b. . The rotating board 25 is supported by the supporting pieces 27a and 27b and is rotatable. The rotating board 25 is mounted on a spring (
(not shown) in a direction approaching the elevating plate 12. 28a and 28b are the shafts 2 on the upper surface of the rotating board 25.
The clamping arms 28a, 29b are rotatably supported by the clamping arms 28a, 29b, and arcuate clamping parts 31a, 31b for clamping the clamper 30 are formed at the tips of the clamping arms 28a, 28b. A long hole 32 is formed in the protrusion at the other end. 33 is the above rotating board 2
5 is an arm rotatably supported by a shaft 34,
A pin 35 is implanted at one end of this arm 33, and this pin 35 is inserted into a long hole 32 formed in each clamping arm 28a, 28b. 36 is a bent long hole formed in the arm 33, and the pin 23 implanted in the sliding plate 20 is inserted into this bent long hole 36. Reference numeral 37 denotes a spring whose end portion is locked to the clamping arms 28a, 28b, respectively, and this spring 37 causes the clamping arms 28a, 28b to
28b are biased toward each other.

FIG. 7 shows the clamper 30. Figure 7
, 38 is an annular plate made of a metal plate, 39 is a cylindrical body fixed at the center of the annular plate 38, and this cylindrical body 39
A protrusion 40 is formed at the center of the upper surface. 41 is a hole formed in the center of the projection 40, and an annular metal plate 42 is fixed to the edge of the hole 41. A collar 43 is formed on the lower end surface of the cylindrical body 39. 44,45
is a rubber ring fixed to the upper surface of the annular plate 38. The clamper transfer mechanism shown in FIGS. 4 to 6 includes a cylindrical body 3 between an annular plate 38 and a collar 43 of a clamper 30 shown in FIG.
9 is the clamping part 31a of the pair of clamping arms 28a, 28b,
This is a mechanism for raising or lowering (raising or lowering with respect to the plane of the paper in FIGS. 4 and 5) by holding it between 31b and 31b.

FIG. 8 shows a disc player portion fixed to the upper right side of the housing 1 of the disc changer device shown in FIG. This disc player section is comprised of a chassis 46 fixed within the housing 1, a plurality of dampers 47, and a pickup unit 49 held on the chassis 46 by a coiled spring 48. 50 is a board of the pickup unit 49, and a motor 51 for rotationally driving the CD is fixed to this board 50. 52 is a turntable fixed to the rotating shaft of the motor 51, and a projection 5 is provided at the center of the turntable 52.
3 is formed, and a ring-shaped magnet 54 is fixed in the recessed portion at the center of the turntable 52. 55 is a guide shaft fixed parallel to the substrate 50, and an optical pickup 56 is slidably supported on this guide shaft 55. 57 is a motor for moving the optical pickup 56 along the guide shaft 55, and the rotational driving force of this motor 57 moves the optical pickup 56 toward the turntable 52.
move in the radial direction.

FIGS. 13 to 15 show a holding structure in which the board 50 is held on the chassis 46 by a damper 47 and a spring 48. As shown in FIG. 16, the damper 47 has a structure in which a viscous fluid 86 such as silicone oil is sealed in a rubber cylindrical body 85.
7 is attached to the chassis 46 with a fixture, and a shaft 87 implanted on the side surface of the board 50 is inserted into the central support portion 88 of the damper 47. Further, one end of each spring 48 is locked to the chassis 46, and the other end is locked to the board 50. Moreover, the direction in which each spring 48 is stretched is shown in FIGS. 13 to 1.
5, the direction is approximately 45 degrees with respect to the horizontal surface of the substrate 50 and the other two surfaces perpendicular to the horizontal surface of the substrate 50. That is, a horizontal plane (a horizontal plane parallel to the horizontal plane of the substrate 50) including the hooking point of each spring 48 to the substrate 50, a first and a second vertical plane perpendicular to this horizontal plane (the first and second vertical planes are The angles with respect to each other (orthogonal to each other) are approximately 45 degrees.

In FIG. 8, reference numeral 58 denotes a rotating member rotatably supported by a shaft 59 on the side of the substrate 50, and this rotating member 58 has a plate spring attached to it as shown in FIGS. 9 and 10. Pressing pieces 60a and 60b are fixed. 61a,
61b is a roller rotatably supported at the tips of the pressing pieces 60a, 60b. Reference numeral 62 denotes an arm integrally formed with the rotating member 58, and a cam surface 63 is formed at the tip of this arm 62. The rotating member 58 is biased by a spring (not shown) counterclockwise in FIG.

In FIG. 8, reference numeral 64 denotes a sliding member that is slidably supported on the side plate of the chassis 46, and this sliding member 64 includes the sliding plate 20 of the clamper transfer mechanism shown in FIGS. 4 to 6. A recess 65 is formed in which the protruding piece 20a engages. 66 is a protrusion formed integrally with the sliding member 64;
A long hole 67 is formed in this protrusion 66 . Reference numeral 68 denotes a rotating arm rotatably supported on the chassis 46 by a shaft 69, and a pin 70 implanted in the rotating arm 68.
is inserted into the elongated hole 67 of the sliding member 64, and the sliding member 64 and the rotating arm 68 are connected via the pin 70, and when the sliding member 64 slides, the rotating arm 68 rotates around the shaft 69. Rotate to. Reference numeral 71 denotes a rotating arm rotatably supported on the chassis 46 by a shaft 72;
A pin 74 implanted in the rotary arm 68 is inserted into a long hole 73 formed in the rotary arm 68, and the rotary arm 68 and the rotary arm 71 are connected via this pin 74.
8 rotates, the rotating arm 71 also rotates. A slider 75 is slidably supported by the chassis 46, and a pin 76 implanted in the slider 75 is inserted into an elongated hole 77 formed in the rotating arm 71.
The rotary arm 71 and the slider 75 are connected via the rotary arm 71, and when the rotary arm 71 rotates, the slider 75 slides. Reference numeral 78 denotes a drive pin implanted in the bent portion at the tip of the slider 75, and this drive pin 78 comes into contact with the cam surface 63 of the arm 62 shown in FIGS. 9 and 10.

In FIG. 8, when the sliding member 64 slides, the rotating arms 68 and 71 rotate, and the slider 75 slides. When the slider 75 slides, the cam surface 63 shown in FIGS. 9 and 10 is driven by the drive pin 78, the rotating member 58 rotates around the shaft 59, and the pressing pieces 60a, 6
0b rotates. The pressing pieces 60a and 60b are placed on the clamper 30 and are pressed onto the turntable 52 from below.
At the same time as pressing the CD being transferred to
This is to prevent a CD placed on the clamper 30 and transferred up and down from coming off the clamper 30 during transfer.

Next, the operation of the above embodiment will be explained. The tray 6 pulled out from the magazine body 4 shown in FIG. 2 is guided by a tray guide member 79 as shown in FIG. 11 and is supplied between the turntable 52 and the clamper transfer mechanism. FIG. 4 shows the clamper transfer mechanism in a standby state, and in this standby state, the clamper 30 is held between the holding parts 31a and 31b of the holding arms 28a and 28b. As shown in FIG. 11, when the tray 6 is guided by the tray guide member 79 and transferred to a predetermined position, the elevating plate 12 is raised to a predetermined position, and the protruding piece 20a of the sliding plate 20 of the clamper transfer mechanism , recess 65 of sliding member 64
engage with. When current is supplied to the clamper transfer motor (not shown) in this state, the motor rotates, and the rotational driving force of this motor is transmitted to the gear 13 via the gear train 15 shown in FIG. rotates counterclockwise. Since the eccentric pin 14 also rotates as the gear 13 rotates, the rotating arm 16 rotates clockwise about the shaft 18. When the rotating arm 16 rotates clockwise, the sliding plate 20 connected to the free end of the rotating arm 16 with a pin 19 slides to the left. When the sliding plate 20 further slides to the left, the triangular drive piece 22 integrally formed on the sliding plate 20 enters the lower surface of the protrusion 25c of the rotating base plate 25, and the drive piece 22 causes the protrusion to 25c is pushed upwards. Therefore, the rotating plate 25 rotates about the shafts 26a and 26b as fulcrums. Since the clamping arms 28a and 28b are pivotally supported on the rotating plate 25, as the rotating plate 25 rotates, the clamper 30, which is clamped by the clamping parts 31a and 31b of the clamping arms 28a and 28b, is lifted upward. It will be done. In the process of lifting the clamper 30 upward, the protrusion 40 of the clamper 30 lifts the CD 80 placed on the tray 6.
The ring 44 on the annular plate 38 enters the center hole from below,
45 pushes the lower surface of the CD 80, and the CD 80 is lifted above the tray 6 (see FIG. 11). At this time, the pressing pieces 60a and 6 of the rotating member 58 shown in FIGS. 9 and 10
0b rotates clockwise (FIG. 10) and pushes the top surface of the CD placed on the clamper 30. Clamper 3 like this
The CD is transferred upward while being placed on the CD and being pressed by the pressing pieces 60a and 60b. When the clamper 30 is lifted further upward, the hole 41 of the protrusion 40 of the clamper 30 enters the central protrusion 53 of the turntable 52.
Furthermore, a magnet 54 provided on the turntable 52 attracts the annular metal plate 42 of the clamper 30, and this magnetic attraction force causes the CD to be pulled between the turntable 52 and the clamper 30.
It is held between Note that when the CD is held between the turntable 52 and the clamper 30, the pressing pieces 60a,
60b rotates counterclockwise (FIG. 10), and roller 61a
, 61b have returned to positions where they do not come into contact with the CD.

As the sliding plate 20 slides to the left in FIG. 4, the pin 23 implanted in the sliding plate 20 moves to the left in the bent elongated hole 36 of the arm 33. go. While the driving piece 22 of the sliding plate 20 is moving to the left while contacting the lower surface of the protrusion 25c of the rotating base plate 25, the pin 23 reaches the bent part of the bent elongated hole 36. Therefore, the arm 33 rotates counterclockwise about the shaft 34 due to the pin 23 moving leftward. Since the pin 35 implanted at the tip of the arm 33 is inserted into the elongated hole 32 formed at one end of the clamping arms 28a, 28b, the arm 3
3 rotates counterclockwise, both clamping arms 28a and 28b are driven by pin 35 of arm 33, clamping arm 28a rotates counterclockwise around shaft 29a, and clamping arm 28b rotates counterclockwise around shaft 29b. The clamping parts 31a, 3 of the clamping arms 28a, 28b rotate clockwise around the
1b opens wider than the collar 43 of the clamper 30, and the clamper 30 is released from being held by the holding arms 28a and 28b.

When the sliding plate 20 further slides to the left and the tip of the drive piece 22 begins to come off the lower surface of the protrusion 25c of the rotating base plate 25 to the left, the clamping portions 31a of the clamping arms 28a and 28b , 31b remains open, the rotating base plate 25 rotates around the shafts 26a, 26b so as to approach the elevating plate 12. The clamping arm 30, which has moved upward while clamping the clamper 30 in this manner, attracts the clamper 30 to the turntable 47, and then descends without clamping the clamper 30.

The sliding plate 20 further slides to the left as shown in FIG.
When the position shown in is reached, the switch 81 is driven by the sliding plate 20, and this switching action cuts off the power to the motor and stops the sliding of the sliding plate 20. The state shown in FIG. 5 is the state of the clamper transfer mechanism during CD playback, and the clamping arms 28a, 28b and the clamper 30 are separated and are not in mechanical contact at all. FIG. 12 shows the clamped state of the CD 80 during CD playback.

Next, after the CD has finished playing, the CD is placed in the tray 6.
We will explain the operation to return to . When the motor is energized in the state shown in FIG. 5, the rotational driving force of the motor causes the gear 13 to
rotates counterclockwise, the rotating arm 16 rotates counterclockwise about the shaft 18, and the sliding plate 20 slides to the right. As the sliding plate 20 slides to the right, the driving piece 22
moves to the right, and when this driving piece 22 enters the lower surface of the protrusion 25c of the rotating board 25, the rotating board 25 moves to the right and the shafts 26a, 2
6b as a fulcrum, and the clamping parts 31a and 31b of the clamping arms 28a and 28b rise. While the tip of the drive piece 22 is moving rightward in contact with the lower surface of the protrusion 25c of the rotary base plate 25, the pin 23 moving rightward in the bent elongated hole 36 reaches the bending part of the arm 33
rotates clockwise around the shaft 34. For this reason, the pin 35 implanted in the arm 33 allows the clamping arm 28 to
a, 28b are rotated, the clamping parts 31a, 31b approach each other, and clamp the clamper 30.

When the sliding plate 20 further slides to the right and the driving piece 22 passes through the lower surface of the protrusion 25c of the rotating board 25 to the right, the rotating board 25 rotates and clamps the clamper 30. In the state, the clamping parts 31a, 31 of the clamping arms 28a, 28b
b goes down. As a result, the clamper 30 is released from the attractive force of the magnet 49, detaches from the turntable 52, descends with the CD 80 placed thereon, and stores the CD in the recess 8 of the tray 6. At this time, the pressing pieces 60a and 60b rotate clockwise (FIG. 10) to press the top surface of the CD. When the sliding plate 20 further slides to the right and moves to the position shown in FIG. 4, the switch 82 is driven by the free end of the rotating arm 16, and the switching of this switch 82 cuts off the power to the motor and the sliding plate 20 is moved to the position shown in FIG. The movement plate 20 stops sliding to the right. Thereafter, the tray 6 containing the CD is driven by the tray pull-out mechanism and is housed in the magazine body 4.

Although FIG. 1 shows the disc player device of this embodiment used horizontally, it can be placed vertically by rotating the casing 1 shown in FIG. However, as in this embodiment, since the direction in which the spring 48 is stretched is approximately 45 degrees with respect to the three orthogonal planes, the spring 48 can be used without changing the direction in which the spring 48 is stretched. That is, according to the above embodiment, the tensile force of the spring 48 causes the substrate 5 to be
Since the damper shaft (one end of which is implanted in the side surface of the board 50 and the other end inserted into the central support part of the damper) embedded in the side surface of the housing 1 can be held at approximately the center of the damper 47, The earthquake resistance characteristics provided by the damper 47 can be maintained regardless of whether it is placed vertically or horizontally.

[0025]

[Effects of the Invention] The present invention has the above-mentioned configuration, and even when changing from vertical to horizontal use of a disc player device, or from horizontal use to vertical use, the tension of the spring can be easily adjusted. It is easy to use as there is no need to change the rack position.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a disc changer device in a first embodiment of the present invention.

[Fig. 2] Perspective view of the magazine used in the first embodiment

[Fig. 3] A perspective view of the tray pulled out from the magazine used in the first embodiment.

[Fig. 4] A top view of the clamper transfer mechanism of the first embodiment in a standby state.

[Fig. 5] A top view of the clamper transfer mechanism of the first embodiment in a disc playback state.

[Fig. 6] An exploded perspective view of the clamper transfer mechanism of the first embodiment.

[Fig. 7] Side view of the clamper of the first embodiment

[Fig. 8] An exploded perspective view of the disc player section of the first embodiment.

[Fig. 9] Top view of the pressing piece of the first embodiment.

[Figure 10] First
Side view of the pressing piece of the embodiment

[Fig. 11] Operation explanatory diagram of the first embodiment

FIG. 12 is a side view of the disc playback state of the first embodiment.

[
FIG. 13 is a bottom view showing the substrate holding structure of the pickup unit of the first embodiment.

FIG. 14 is a side view showing the board holding structure of the pickup unit of the first embodiment.

FIG. 15 is a side view showing the substrate holding structure of the pickup unit of the first embodiment.

[Fig. 16] Cross-sectional view of the damper of the first embodiment

[Explanation of symbols]

46 Chassis 47 Damper 48 Spring 49 Pickup unit 50 Board 52 Turntable 56 Optical pickup

Claims (3)

[Claims] 1. A movable member supporting an optical pickup is held by a fixed member via a plurality of dampers, a plurality of elastic members are stretched between the movable member and the fixed member, and the tension of the elastic member is A disc player device in which the mounting direction is approximately 45 degrees with respect to three planes orthogonal to each other at a mounting portion of the elastic member to the substrate. 2. The disc player device according to claim 1, comprising a damper in which a viscous fluid is sealed in a cylindrical body made of rubber. 3. The disc player device according to claim 1, wherein a coiled spring is used as the elastic member.